Argo Rollouts 金丝雀与蓝绿发布进阶实践

概览与核心价值Argo Rollouts 提供渐进式交付能力，通过分析模板与分步权重控制，在保障可用性前提下完成发布与快速回滚。金丝雀示例apiVersion: argoproj.io/v1alpha1 kind: Rollout metadata: name: web spec: replicas: 6 strategy: canary: steps: - setWeight: 10 - pause: {duration: 120} - setWeight: 30 - pause: {duration: 300} - setWeight: 60 - pause: {duration: 300} analysis: templates: - templateName: success-rate startingStep: 1 selector: matchLabels: app: web template: metadata: labels: app: web spec: containers: - name: web image: myapp:2.0.0 ports: - containerPort: 8080 分析模板：apiVersion: argoproj.io/v1alpha1 kind: AnalysisTemplate metadata: name: success-rate spec: metrics: - name: http-success-rate interval: 60s count: 3 successCondition: result[0] > 0.995 failureCondition: result[0] < 0.99 provider: prometheus: address: http://prometheus.monitoring.svc:9090 query: sum(rate(http_requests_total{status=~"2.."}[5m])) / sum(rate(http_requests_total[5m])) 蓝绿示例spec: strategy: blueGreen: activeService: web-active previewService: web-preview autoPromotionEnabled: false 参数与验证环境: Argo Rollouts v1.7+。验证点:权重分步提升，SLO 达成后继续推进，否则回滚蓝绿在预览服务验证通过后再切换活动服务最佳实践定义与业务相关的分析指标，明确阈值与窗口结合健康探针与超时策略，确保快速失败与回滚与 Ingress/Service 配置配合，保障路由正确结论基于分析模板与分步权重，Argo Rollouts 能实现稳健的渐进式发布，并在异常时快速回滚，提升交付质量与稳定性。